Implement emergency break in index receive when the limit of the ramCache is exceeded by more than cacheLimit

See: http://www.yacy-forum.de/viewtopic.php?p=22911#22911



git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2248 6c8d7289-2bf4-0310-a012-ef5d649a1542

htroot/yacy/transferRWI.java

@@ -99,6 +99,12 @@ public final class transferRWI {
             granted = false; // don't accept more words if there are too many words to flush
             result = "busy";
             pause = 60000;
+        } else if (checkLimit && sb.wordIndex.wSize() > (sb.wordIndex.getMaxWordCount() + cachelimit)) {
+            // we are too busy flushing the ramCache to receive indexes
+            sb.getLog().logInfo("Rejecting RWIs from peer " + otherPeerName + ". We are too busy (wordcachesize=" + sb.wordIndex.wSize() + ").");
+            granted = false; // don't accept more words if there are too many words to flush
+            result = "busy";
+            pause = 300000;
         } else {
             // we want and can receive indexes
             // log value status (currently added to find outOfMemory error
@@ -186,4 +192,4 @@ public final class transferRWI {
         // return rewrite properties
         return prop;
     }
-}
+}

source/de/anomic/plasma/plasmaWordIndex.java

@@ -149,6 +149,10 @@ public final class plasmaWordIndex extends indexAbstractRI implements indexRI {
         ramCache.setMaxWordCount(maxWords);
     }
 
+    public int getMaxWordCount() {
+        return ramCache.getMaxWordCount();
+    }
+
     public void flushControl() {
         // check for forced flush
         synchronized (this) { ramCache.shiftK2W(); }